Apple M2 8-Core GPU vs Apple M4 8-core GPU

Apple M2 8-Core GPU

The Apple M2 8-core GPU is an integrated graphics card offering 8 of the 10 cores designed by Apple and integrated in the Apple M2 SoC. It uses the unified memory architecture of the M2 SoC (up to 24 GB LPDDR5-6400 with 100 GB/s bandwidth) and should offer 128 execution units.

The performance is positioned right between the old 8-core model in the M1 GPU and the higher end 10-core model in the M2. The theoretical performance should be around 2.9 Teraflops, as the 8-core version offers the same 1,398 MHz maximum clock rate as the 10-core version. Compared to other iGPUs from AMD and Intel, the M2 benefits greatly from the unified memory architecture and the high bandwidth.

The M2 chip is manufactured in the second generation 5nm process at TSMC (most likely N5P). The power consumption is around 10 Watt (in our tests under load of the MBP13) compared to the 13.5W of the 10-core version.

Apple M4 8-core GPU

The 8-core Apple M4 GPU is a graphics adapter built into the smallest Apple M4 series SoC that debuted in October 2024 alongside the new iMac. It isn't clear if this is a 10-core M4 GPU with two cores disabled, or if Apple actually makes an entirely new M4 SoC now that has fewer CPU and GPU cores by design.

A few popular video codecs can be HW-decoded and HW-encoded here but the list is nowhere near as long as what current AMD iGPUs deliver, let alone Intel iGPUs. However, there is a healthy selection of modern technologies such as ray tracing on offer.

Just like the rest of the Apple M4 chip, the graphics adapter is manufactured on a "second generation 3 nm" TSMC process that's still cutting-edge, as of late 2024. It has access to the 16 or 24 gigabytes of fast on-package LPDDR5x-7500 RAM and, apart from the iMac's internal display, allows one to connect one more monitor with an "up to 6K" resolution whereas the 10-core M4 GPU can drive 2 such monitors.

Its performance is slated to be around 15% lower than that of the 10-core M4 GPU. Still, it's going to be at least as fast as the Radeon 760M in many tasks, including gaming.